Heavy dumbbells can be more dangerous due to instability.
Yeah possibly but that can also be easily the best option if you're getting done on the fixed track of a machine or the partial fixed trap of the bar. I speak from only my own experience here.
I think most people who struggle with dbs have never dropped the ego to full lift down to chest. I'm just lucky that I started like that because I feel sorry for all the poor fools who are petrified about putting the db on their chest and never getting it back up. That's how you get done by dbs. If you have full power at the bottom, it never feels risky. Or maybe I was just built for it.
Right now, for the last 6 months I've been getting absolutely smashed with shoulder inflammation on pretty much anything chesty/shoulder but DBs are the one thing I can sort of do to the max and get away with.. mostly because of the freedom of movement. I've gone from dipping with up to 80-90kg on me to being mortally afraid of even doing bodyweight (relax, I'm not doing 12 at 80/90kg). The shoulders recover but they absolutely are almost inoperable for a few days.
Anybody else with experience of this, feel free to weigh in, I haven't yet accepted defeat and let them rest for more than 2 weeks. I'm thinking I might need to give them a solid time. Little worried that my days of being teflon bencher are behind me